Classifying Material Quiz

A student was investigating a sample of matter that is attracted to a magnet and is a good conductor of electricity. Based on this evidence, the matter is made of -

• iron

• wood

• glass

• paper

A student added sugar to a glass of water and stirred. After ten minutes the sugar was no longer visible. The sugar seemed to disappear because sugar -

• evaporates in water

• is magnetic in water

• dissolves in water

• sinks in water

A student investigated several samples of matter and recorded the findings in a data table. Based on the data, Which sample has the following properties? * conducts electricity * is not attracted to a magnet * has a mass between 5 and 15 grams

• Sample 1

• Sample 2

• Sample 3

• Sample 4

A group of students have a block of aluminum 10 cm by 10 cm by 10 cm. They conducted some tests and recorded their results. The students found a smaller block of aluminum that is only 1 cm by 1 cm by 1 cm. Which property do we expect to observe in the smaller block? The smaller block will -

• have a mass of 2.8kg

• float in water

• conduct electricity

• be attracted to a magnet

Students filled a graduated cylinder with water and oil. Next they placed two samples, Substance X and Substance Y, in the same graduated cylinder. The illustration shows the final positions of all these materials. What conclusion can be drawn from this observation?

• Water is less dense than oil.

• Substance Y is less dense than oil.

• Oil is more dense than water.

• Substance X is less dense than water.